Question $2$: Transportation Problem

CT$-$Power has three electric power plants $($Plants $1,2,$ & $3)$ that supply the needs of four cities in Connecticut.

Each plant can supply some number of kilowatt$-$hours $($kwh$)$ as shown in the table.

The peak power demands and the costs of sending $1$ million kwh of electricity from a plant to a city are also given in the table.

CT$-$Power wants to minimize the cost of meeting each city's peak power demand.

$\backslash$table$[[$From$,$To$],[$City $1,$City $2,$City $3,$City $4,\backslash$table$[[$Supply$],[($Million $kwh$